Try searching for:

• "modernist painting"
• "minimalist objects"
• "autonomy of art"
• formalism
• "picture plane"
• illusionism
• specific objects

Search for specific artists using the Subject Search option.  Enter the artist's name: last name, first name.

• Stella, Frank
• Louis, Morris
• Noland, Kenneth
• Frankenthaler, Helen
• Judd, Donald
• Andre, Carl

In addition, try the following searches in the subject specific databases. 

• "formalism art criticism"
• "autonomy of art"
• flatness and the "delimitation of flatness"
• relational painting or art
• non-composition
• post-studio